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Discussion Starter · #1 ·
I have an 90 mx-6 turbo 4ws which makes a buzzing sound after starting. Sometimes it's a small buzz and other times it's of a longer duration. It sounds like it's coming from behind the dash board somewhere. Any ideas?
 

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186 Posts
it could be the ABS pump doing it's self testing routine. I think that the owner's manual talks about it.
 

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3,962 Posts
Yep it's the ABS pump pressurizing the accumulator. Normal behavior.
 
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Discussion Starter · #4 ·
OK, thanks. Is it normal for it to occasionally check itself when driving? Sometimes it buzzes for one or two seconds during normal driving.
 

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Mine does the exact same thing, buzzes when the car started and then sometimes once in a blue moon it does it about 30 seconds later. Very anoying though!
 
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